ISO INTERNATIONAL STANDARD. Ceramic tiles Part 6: Determination of resistance to deep abrasion for unglazed tiles

Transcription

1 INTERNATIONAL STANDARD ISO Second edition Ceramic tiles Part 6: Determination of resistance to deep abrasion for unglazed tiles Carreaux et dalles céramiques Partie 6: Détermination de la résistance à l'abrasion profonde pour les carreaux non émaillés Reference number ISO :2010(E) ISO 2010

2 PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel Fax copyright@iso.org Web Published in Switzerland ii ISO 2010 All rights reserved

3 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO was prepared by Technical Committee ISO/TC 189, Ceramic tile. This second edition cancels and replaces the first edition (ISO :1995), of which subclause 4.3 has been technically revised. ISO consists of the following parts, under the general title Ceramic tiles: Part 1: Sampling and basis for acceptance Part 2: Determination of dimensions and surface quality Part 3: Determination of water absorption, apparent porosity, apparent relative density and bulk density Part 4: Determination of modulus of rupture and breaking strength Part 5: Determination of impact resistance by measurement of coefficient of restitution Part 6: Determination of resistance to deep abrasion for unglazed tiles Part 7: Determination of resistance to surface abrasion for glazed tiles Part 8: Determination of linear thermal expansion Part 9: Determination of resistance to thermal shock Part 10: Determination of moisture expansion Part 11: Determination of crazing resistance for glazed tiles Part 12: Determination of frost resistance Part 13: Determination of chemical resistance Part 14: Determination of resistance to stains ISO 2010 All rights reserved iii

4 Part 15: Determination of lead and cadmium given off by glazed tiles Part 16: Determination of small colour differences iv ISO 2010 All rights reserved

5 INTERNATIONAL STANDARD ISO :2010(E) Ceramic tiles Part 6: Determination of resistance to deep abrasion for unglazed tiles 1 Scope This part of ISO specifies a test method for determining the resistance to deep abrasion of all unglazed ceramic tiles used for floor coverings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 630, Structural steels Plates, wide flats, bars, sections and profiles ISO , Bonded abrasives Determination and designation of grain size distribution Part 1: Macrogrits F4 to F220 3 Principle Determination of the abrasion resistance of unglazed tiles by measuring the length of the groove produced in the proper surface by means of a rotating steel disc, under given conditions and with the use of abrasive material. 4 Apparatus 4.1 Abrasion apparatus, consisting essentially of a rotating disc, a storage hopper with a dispensing device for the abrasive material, a test specimen support and a counterweight (see Figure 1). The disc shall be made of E 235 A (Fe 360 A) conforming to ISO 630, with a diameter of (200 ± 0,2) mm and a thickness at the edge of (10 ± 0,1) mm, and with a revolution rate of 75 r/min. The pressure with which the test specimens are held against the steel disc shall be determined by calibrating the apparatus against transparent fused silica. The pressure shall be adjusted such that, after 150 revolutions using F80 abrasive, which shall be in accordance with ISO , a chord of (24 ± 0,5) mm shall be produced. Transparent fused silica shall be used as a primary standard. A secondary standard of float glass or other products may be used. When the diameter has worn by 0,5 % of the initial diameter, the steel disc shall be replaced. 4.2 Measuring gauge, accurate to 0,1 mm. ISO 2010 All rights reserved 1